mercer-effect 

Synonyms: Matt Mercer Effect, Matthew Mercer Effect

Matthew Mercer is the Dungeon Master of the popular Dungeons & Dragons show "Critical Role".
The "mercer-effect" is what people call it when fans of the show get into D&D carrying the expectation that their sessions should be at least as good or similar to what they've seen in the show, not keeping in mind that the players seen on Critical Role have years of experience in both D&D and acting.

"I hosted a session with some 1st-timers the other night, they wouldn't stop talking about Critical Role and how we should try to play our game more like that."

"Yeah, that's the mercer-effect all right."

mercer-effect by Vseras April 14, 2019

EFG 

EFG stands for Epic Fail Guy. He is a meme on the website 4chan. He is usually represented as a stick figure wearing a Guy Fawkes mask, and never does anything right. Combo? Fail. Meme? Fail. Comment? Joke? All fail. He can't even shoop a decent whoop.

EFG: LETS!
EFG: GET!
EFG: READY!
EFG: TO!
anonymous: fail.

EFG by Fresnel August 28, 2007

Pre-UR-Effect 

A term derived from the text Unlock Reality which spawned the term Unlock Reality (UR) and the UR-Effect. It is a phenomenon felt by people in the days prior to reading the text Unlock Reality.

It describes a feeling of increased synchronicity with the universe that extends beyond mere coincidence. Examples include locating objects of desire in strange places and meeting long lost friends.

It is similar though distinctive to the UR-Effect as it is a sense of recognising an emerging pattern from seeming randomness, as oppose to the more complete sense of connectivity associated with the UR-Effect.

The Pre-UR-Effect was first noted on the Care2 network as members of the Prepare to Unlock Reality group recorded personal events as they waited for Unlock Reality bookcrossing manuscripts to reach them in the post.

The Pre-UR-Effect began for Chris when she started to find the exact things she really wanted and had been looking for at extremely low prices.

Jane felt the full force of the Pre-UR-Effect as she bumped into a long lost school friend as she went to pick up a bookcrossing copy of Unlock Reality from the post office.

Pre-UR-Effect by Tony Hartly September 24, 2008

efileni 

Very beautiful girl who is well spoken. Many guys like her but are too afraid to make a move because she is smart, beautiful, and a little sassy at times. She is a sensitive girl who wants everyone to get along. Get you and Efileni. She is one of a kind.

Boys: I wish I had an Efileni. She seems overly confident. Someone help me. She’s too beautiful.

efileni by Yser120948 April 27, 2022

Mason Effect 

A global phenomenon whereby unseasonably warm weather prevents snow fall in otherwise alpine wonderlands.

We have been so looking forward to our ski holiday in Austria at the end of the year but fear that the Mason Effect will leave us with no snow to ski on.

Mason Effect by Tunnel November 21, 2011

Kryptonian Effect 

When you’ve been awake for so long that at the next sunrise you suddenly feel rejuvenated.

If it were not for the Kryptonian Effect, I never would have made it through exams today.

Kryptonian Effect by Schulist December 14, 2017

Parker Effect 

When a school slowly tricks it’s students into joining the LGBTQ community.

That school has the parker effect.

Parker Effect by pooplmao937 May 25, 2023